Subtribe Palaechthina Brinck 1948 (snout beetle)
Insecta - Coleoptera - Curculionidae
Parent taxon: Listroderini according to A. A. Legalov 2015
Sister taxon: Listroderina
Subtaxa: Listronotus
Ecology:
Distribution: found only at Green River (Packard Collection) (Eocene of Wyoming)